Heat pipe structure having capillary tissue formed with end part for supporting

ABSTRACT

A heat pipe structure having a capillary tissue formed with end part for supporting includes a pipe body and a capillary tissue installed in the pipe body; the capillary tissue includes a strip-like primary capillary part and a positioning capillary part, the primary capillary part is abutted against a lateral wall formed in the pipe body, and the positioning capillary part is formed with a connecting segment, and an abutting segment and a distal segment in sequence extended from the connecting segment. The connecting segment allows the positioning capillary part to be connected to one end of the primary capillary part thereby enabling the positioning capillary part to be extended from a lateral wall to another lateral wall of the pipe body, and the abutting segment is extended along the length direction of the pipe body thereby allowing the distal segment to be formed.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a capillary tissue, especially to aheat pipe structure having a capillary tissue formed with end part forsupporting.

2. Description of Related Art

A conventional capillary tissue installed in a heat pipe is mostlyformed through weaving fibers or metal wires or reeling a metal net, andafter the weaving or reeling process is finished, a bending statusoriented towards no specified direction is formed because of theresidual stress provided by the material itself; when theabove-mentioned capillary tissue is disposed in a pipe body of a heatpipe, a problem of difficult in disposing may be caused, or otherproblems such as not being able to be precisely positioned and formed ina desired status may also be caused.

Take a strip-like capillary tissue (such as a capillary tissue havingcoaxially-arranged fibers) for example, the strip-like shape makes thecapillary tissue hard to be kept in a linear status when being disposedin a heat pipe; the disposed capillary tissue can be sintered in thepipe body for being fastened with a sintering means, but if thecapillary tissue is disposed in the pipe body before being sintered andthere is no specified mold which can be used for shaping, or theresidual stress provided by the material itself may cause deformationthereby losing the preset linear status, so the shape thereof formedthrough being sintered and positioned may not meet the anticipation; thecapillary tissue can also be disposed through a means of being abuttedagainst a lateral wall formed inside the pipe body, a problem of thepipe body recessing may be happened during a gas discharging operation,thus the original design of capillary tissue could not be kept, and theevaporation or condense surface could become smaller, the thermalresistance may be larger, and the heat transferring effect may not be asexpected.

Accordingly, the applicant of the present invention has devoted himselffor researching and inventing a novel structure for improving theabove-mentioned shortages.

SUMMARY OF THE INVENTION

The present invention is to provide a heat pipe structure having acapillary tissue formed with end part for supporting, in which ahook-like capillary tissue is disposed in a heat pipe for positioningand supporting, so the capillary tissue is enabled to be effectivelypositioned in the heat pipe and capable of being served as a supportingstructure thereby preventing a pipe body of the heat pipe fromrecessing.

Accordingly, the present invention provides a heat pipe structure havinga capillary tissue formed with end part for supporting, which includes apipe body and a capillary tissue installed in the pipe body, theinterior of the pipe body is formed with a vapor flow channel which ishollow and extended along the length direction thereof, the capillarytissue includes a strip-like primary capillary part and a positioningcapillary part connected to one end of the primary capillary part, theprimary capillary part is allowed to pass the vapor flow channel andabutted against a lateral wall formed in the pipe body, and thepositioning capillary part is formed with an arc-like connecting segmentand an abutting segment and a distal segment in sequence extended fromthe connecting segment; wherein, the connecting segment allows thepositioning capillary part to be connected to one end of the primarycapillary part thereby enabling the positioning capillary part to beextended from a lateral wall to another lateral wall of the pipe body sothe abutting segment is enabled to be abutted against the anotherlateral wall, and the abutting segment is extended along the lengthdirection of the pipe body thereby allowing the distal segment to beformed.

BRIEF DESCRIPTION OF DRAWING

FIG. 1 is a perspective exploded view according to a first embodiment ofthe present invention;

FIG. 2 is a perspective view showing the assembly according to the firstembodiment of the present invention;

FIG. 3 is a plane cross sectional view showing the internal structureaccording to the first embodiment of the present invention; and

FIG. 4 is a plane cross sectional view showing the internal structureaccording to a second embodiment of the present invention.

DETAILED DESCRIPTION OF THE INVENTION

Preferred embodiments of the present invention will be described withreference to the drawings.

Please refer to FIG. 1 and FIG. 2, wherein FIG. 1 is a perspectiveexploded view according to a first embodiment of the present invention;and FIG. 2 is a perspective view showing the assembly according to thefirst embodiment of the present invention. The present inventionprovides a heat pipe structure having a capillary tissue formed with endpart for supporting, which includes a pipe body 1 and a capillary tissue2 installed in the pipe body 1.

The pipe body 1 is formed as an elongated hollow tubular body, a crosssection thereof is formed in a round or flat status, according to thisembodiment provided by the present invention, the flat status formedthrough being processed with a flattening treatment is adopted forillustration thereby being able to be installed in a ultra-thin heatpipe (having a thickness smaller than 0.6 mm). As shown in FIG. 1,before the pipe body 1 is sealed, the pipe body 1 is formed with a pipemember 10 and an end part 11 sealing one end of the pipe member 10, andthe interior of the pipe member 10 is formed with a vapor flow channel100 (as shown in FIG. 3) which is hollow and extended along the lengthdirection of the pipe body 1 and communicated with the other end of thepipe member 10 which is formed in an opened status, thereby allowing thecapillary tissue 2 to be disposed in the vapor flow channel 100; whenthe capillary tissue 2 is disposed in the pipe body 1 and the air insidethe pipe body 1 is discharged, the other end of the pipe member 10 issealed thereby forming another end part 11′, and a sealing structure 12is formed at the end part 11′.

The capillary tissue 2 is formed as a strip-like member throughsintering powders, weaving fibers or metal wires or reeling a metal net,and the capillary tissue 2 is disposed in the above-mentioned pipe body1. As shown in FIG. 3, the capillary tissue 2 includes a primarycapillary part 20 formed in a strip-like status and a positioningcapillary part 21 connected to one end of the primary capillary part 20;the primary capillary part 20 is allowed to pass the vapor flow channel100 and abutted against a lateral wall 101 formed in the pipe body 1,and the positioning capillary part 21 is disposed at the end part 11 ofthe pipe body 1 and formed with an arc-like connecting segment 210, andan abutting segment 211 and a distal segment 212 in sequence extendedfrom the connecting segment 210, the connecting segment 210 allows thepositioning capillary part 21 to be connected to one end of the primarycapillary part 20 so as to be extended, thereby enabling the positioningcapillary part 21 to be extended from the lateral wall 101 to anotherlateral wall 101′ of the pipe body 1, the abutting segment 211 isabutted against the another lateral wall 101′, and the abutting segment211 is bent along the length direction of the pipe body 1 therebyallowing the distal segment 212 to be extended, so the distal segment212 is able to be extended to a proper length towards the vapor flowchannel 100, and two sides of the distal segment 212 are both formedwith a space allowing the vapor flow channel 100 to be kept; accordingto this embodiment, the end part 11 of the pipe body 1 is formed with asan inner conical surface 110, so the arc-like connecting segment 210 ofthe positioning capillary part 21 is able to be abutted against theinner conical surface 110 of the end part 11 for providing an enhancedpositioning effect.

Accordingly, with the above-mentioned structure, the heat pipe structurehaving the capillary tissue formed with end part for supporting isassembled.

Please refer to FIG. 3, because the capillary tissue 2 includes theabove-mentioned positioning capillary part 21 capable of being abuttedagainst the two lateral walls 101, 101′ of the pipe body 1, thecapillary tissue 2 is enabled to be positioned and also to provide asupporting effect in the pipe body 1, meanwhile the extended distalsegment 212 is able to prolong the transferring path of the capillarytissue 2 and also able to enlarge the area for supporting the end part11 of the pipe body 1 or even able to be extended along the lengthdirection of the pipe body 1, thereby providing a supporting effect tothe full length of the pipe body 1.

Please refer to FIG. 4, which discloses a second embodiment of thepresent invention; the other end of the primary capillary part 20 of thecapillary tissue 2 can also be formed with another positioning capillarypart 21′, the another positioning capillary part 21′ is also formed withan arc-like connecting segment 210′, and an abutting segment 211′ and adistal segment 212′ in sequence extended from the connecting segment210′, thereby being able to provide a supporting effect to the anotherend part 11′ of the pipe body 1.

According to the heat pipe structure having the capillary tissue formedwith end part for supporting provided by the present invention, afterthe capillary tissue 2 is disposed in the pipe body 1, the positioningcapillary part 21 is enabled to apply a force to the two lateral walls101, 101′ formed in the pipe body 1 for being abutted against the twolateral walls 101, 101′, thereby being able to provide a positioning andsupporting effect, and the capillary tissue 2 formed with a desiredshape can be sintered or fastened in the pipe body 1, thereby preventingproblems such as being bent or the desired shape being deformed afterbeing disposed in the pipe body 1. When being applied in an ultra-thinheat pipe, because the internal space of the heat pipe has already beenthinned, other positioning member or positioning mold is hard to bedisposed therein for assist the capillary tissue 2 to be positioned, sothe capillary tissue 2 is required to be provided with a selfpositioning and supporting function after being disposed in the pipebody 1 thereby being able to be applied in the ultra-thin heat pipe. Inaddition, the above-mentioned distal segments 212, 212′ are not abuttedagainst the lateral walls 101, 101′ of the pipe body 1, so the distalsegments 212, 212′ can be served as a supporting structure in the pipebody 1, and the vapor flow channel 100 passes two sides of the distalsegments 212, 212′ thereby effectively enlarging the evaporation orcondense surface, allowing the thermal resistance to be smaller andhaving a better heat transferring effect.

Although the present invention has been described with reference to theforegoing preferred embodiment, it will be understood that the inventionis not limited to the details thereof. Various equivalent variations andmodifications can still occur to those skilled in this art in view ofthe teachings of the present invention. Thus, all such variations andequivalent modifications are also embraced within the scope of theinvention as defined in the appended claims.

What is claimed is:
 1. A heat pipe structure having a capillary tissueformed with end part for supporting, including: a pipe body, formed witha vapor flow channel which is hollow and extended along the lengthdirection thereof; and a capillary tissue, installed in the pipe body,and including a strip-like primary capillary part and a positioningcapillary part connected to one end of the primary capillary part,wherein the primary capillary part is allowed to pass the vapor flowchannel and abutted against a lateral wall formed in the pipe body, andthe positioning capillary part is formed with an arc-like connectingsegment and an abutting segment and a distal segment in sequenceextended from the connecting segment; wherein, the connecting segmentallows the positioning capillary part to be connected to one end of theprimary capillary part thereby enabling the positioning capillary partto be extended from a lateral wall to another lateral wall of the pipebody so the abutting segment is enabled to be abutted against theanother lateral wall, and the abutting segment is extended along thelength direction of the pipe body thereby allowing the distal segment tobe formed.
 2. The heat pipe structure having the capillary tissue formedwith end part for supporting according to claim 1, wherein a crosssection of the pipe body is formed in a round or flat status.
 3. Theheat pipe structure having the capillary tissue formed with end part forsupporting according to claim 1, wherein the thickness of the pipe bodyis smaller than 0.6 mm.
 4. The heat pipe structure having the capillarytissue formed with end part for supporting according to claim 1, whereinthe capillary tissue is formed as a strip-like member through sinteringpowders, weaving fibers or metal wires or reeling a metal net.
 5. Theheat pipe structure having the capillary tissue formed with end part forsupporting according to claim 1, wherein two sides of the distal segmentare both formed with a space allowing the vapor flow channel to be kept.6. The heat pipe structure having the capillary tissue formed with endpart for supporting according to claim 1, wherein the length of thedistal segment is extended towards the vapor flow channel.
 7. The heatpipe structure having the capillary tissue formed with end part forsupporting according to claim 1, wherein the pipe body is formed with apipe member and two end parts respectively at two ends of the pipe bodyand sealing the vapor flow channel.
 8. The heat pipe structure havingthe capillary tissue formed with end part for supporting according toclaim 7, wherein the positioning capillary part is disposed at one ofthe end parts of the pipe body.
 9. The heat pipe structure having thecapillary tissue formed with end part for supporting according to claim8, wherein the end part of the pipe body is formed with as an innerconical surface, and the connecting segment is abutted against the innerconical surface of the end part.
 10. The heat pipe structure having thecapillary tissue formed with end part for supporting according to claim7, wherein the capillary tissue is further formed with anotherpositioning capillary part at another end of the primary capillary partso as to be disposed at the other end part of the pipe body.
 11. Theheat pipe structure having the capillary tissue formed with end part forsupporting according to claim 10, wherein the another positioningcapillary part is formed with an arc-like connecting segment and anabutting segment and a distal segment in sequence extended from theconnecting segment.